Finding the Fourth Proportional to 378,823.36, 522,788.79 and 206,750.74
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Solution
The fourth proportional to 378,823.36, 522,788.79 and 206,750.74 is: 285,322.87
Step by Step Solution
- Step 1: Write the proportion equation
378,823.36 : 522,788.79 = 206,750.74 : x - Step 2: Convert to fraction form
378,823.36/522,788.79 = 206,750.74/x - Step 3: Cross multiply
378,823.36x = 522,788.79 × 206,750.74 - Step 4: Simplify right side
378,823.36x = 108,086,969,196.21 - Step 5: Solve for x
x = 108,086,969,196.21/378,823.36 - Step 6: Final answer
x = 285,322.87
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.